Trolley-wheel guard



BASQS J. TRUNKO TROLLEY WHEEL GUARD Filed March 12, 1.923

June l, 1923.

Patented .lune i9, i923..

intatta JOHN Tammo, ory Amann, wnsr VIRGINIA. 'l

TROLLEY-WHEEL GUARD.

`Application filed. lfiarch 12. 1923. Serial No. 624,411.

improvements in Trolley-Wheel Guards, of

-which'the following is a specification.

This invention relates to certain new and useful improvements in trolley wheel guards and has for its primary object to provide a guard carried by the head of a trolley pole and associated with a trolley wheel in a manner to prevent accidental escape or jumping of the trolley wheel from the conductor wire. y

Another object of the invention tov provide a trolley wheel'guard wherein a resilient guard arm is carried bythe trolley pole head at each side of the wheel adapted `for Contact with each other when a trolley wheel is properly tracking upon the conductor wire, the ends of the'resilient guard arms being so constructed as to `permit the passing of trolley frogs and cross wires, and further loperating as a finder for thev trolley wheel.

With the above and other objects in view as the nature of the invention is better understood, the same Consists of the novel form, combination 'and arrangement of parts hereinafter more fully described,shown in the accompanying drawing and claimed.

In the drawing, wherein like reference characters designate corresponding parts throughout the several views,

Figure l is a side elevational view of a trolley pole head showing the wheel guard mounted thereon with `the wheel in tracking engagement with a conductor wire,

Figure 2 is a fragmentary front elevational view of the trolley pole head and wheel,

Figure 3 is a top plan view, `and Figure 4 is a longitudinal horizontal sectional view taken on liney lV-*IV of Fig. l

showing the formation of one of the guardV arms.

Referring more in detail to the aecompanying drawing, and particularly to Figs. l and 2 there is illustrated a trolleyv wheel guard wherein the pole l supports a head 2 that is bifurcated to provide side arms 3 between which the trolley wheel 4 is journaled.

As shown more clearly in Fig. l the outer ends of the side members 3 of the trolley head are cut at an angle that is disposed in parallelism with the trolley Wire or conductor 5 when the wheel 4 is in tracking engagement therewith. A guard arm isy associated with each side member 3 of the trol. ley head and includes a side plate 6 bolted as at 7 to the outer face of the side member 3, the I plate 6 overlying the end bearing for `the trolley wheel 4 as shown by dotted lines in Fig. l properly retaining the trolley wheel V,in the head and eliminating the necessity of providing anchoring means for the trolley wheel bearing. The upper edge of the side plate 6 is angularly bent as at 8 for contactfingthe angularly cut outer end of the side `member 3 and is secured thereto by fasten-r ing devices 7, and said plate further includes an upwardly directed resilient side wall 9 yhaving its upper edge rolled upon itself to forma horizontally disposed guard l()` of` substantial tubular formation as shown in Figs. 2 to 4 with the opposite ends thereof "moved into proximity and flared outwardly i as at l0'LL to permit the guard 10 readily to pass over-trolley frogs or other cross wires. The oppositely positioned guards 10 carried by the resilient arms 9contact each other when gthe wheel 4 engages the trolley wire 5, the

resiliency of the side arms 9 tending to maintain the wheel in proper engagement with the wire and preventing accidental` disengagement thereof. T he outwardly {iai-ed ends lOfL of the guard arms will also assist infpositioning the wheel in engagement with the wire.

While there is herein shown and described `the preferred embodiment of the present inf vention it is nevertheless to be understood that minor changes may be made therein y plate, the upper ends of the resilient plates `being rolled upon themselves to provide wheel guards adapted for resilient engagement upwardly of the trolley wheel.

y 2. ln a trolley wheel guard, a pole having a trolley wheel journaled inthe head there i y 2 v f 1,459,663

of, a guard plate secured to each side of the ment upwardly of the trolley Wheel, the trolley pole head and overlying the' end rolled portions of the Wheel guards adjacent bearing for the trolley Wheel7 upwardly dieach end thereofl being moved into proX- l0` rected resilient arms Carried bythe guardv ilnity and respectively flared outwardly. 5 plate, the upper ends of the resilient plates In testimony whereof I alix my signature.

` being rolled upon themselves to provide Wheel guards adapted for resilient engage-` l JOHN TRUNKO. 

